Hamilton in Spring
In spring (September, October and November), Hamilton sees average daytime highs around 17°C and overnight lows near 9°C, with 302 mm of rain over about 38 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 15°C in early September to 20°C by late November. The sky is clear or mostly clear about 15% of the time across spring, and the air most often feels dry.
Spring is Hamilton's 3rd-best season to visit on our travel score. For the whole year in context, see Hamilton's year-round climate.
- Avg daytime high
- 17°C
- 3rd-warmest season
- Avg overnight low
- 9°C
- Rainfall
- 302 mm
- 38 wet days
- Avg wind
- 15 km/h
- Travel score
- 5.0
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Hamilton in Spring
Over the season highs climb from about 15°C in early September to 20°C by late November.
A typical spring day in Hamilton reaches about 17°C and drops to 9°C overnight. The warmest of the three months is November, the coolest September.
Hamilton weather by month
How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 23° / 15° | 71 | 8.8 | 14.3 | 6.9 |
| Feb | 24° / 15° | 70 | 7.9 | 13.5 | 7.1 |
| Mar | 22° / 13° | 72 | 7.8 | 12.3 | 7.0 |
| Apr | 19° / 11° | 91 | 9.4 | 11.1 | 6.2 |
| May | 17° / 9° | 107 | 11.6 | 10 | 5.2 |
| Jun | 14° / 7° | 114 | 12.3 | 9.4 | 4.0 |
| Jul | 14° / 6° | 128 | 13.5 | 9.7 | 3.6 |
| Aug | 14° / 6° | 122 | 14.8 | 10.5 | 3.8 |
| Sep | 16° / 8° | 114 | 13.9 | 11.7 | 4.3 |
| Oct | 17° / 10° | 100 | 12.7 | 13 | 5.1 |
| Nov | 19° / 11° | 88 | 11.1 | 14 | 5.7 |
| Dec | 21° / 13° | 99 | 11 | 14.6 | 6.2 |
Cloud cover in Spring
The sky is clear or mostly clear about 15% of the time across spring.
Chance of precipitation in Spring
Hamilton gets around 302 mm of rain over 38 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 15 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 06 min in early September to 14 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 4.7 kWh/m².
Hazard calendar for Hamilton
In spring, Hamilton overlaps its cyclone season. The full year is below, with each hazard's peak months called out.
Hamilton sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Is spring a good time to visit Hamilton?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Hamilton for sightseeing.
What to pack for Hamilton in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Hamilton sees daytime highs around 17°C and nights near 9°C. Pack rain gear. Worth having: a warm layer and sun protection. About 38 days see rain.
Sea temperature near Hamilton in Spring
The nearest coast averages about 15°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 40 km away) is warmest in February at about 21°C and coldest in August near 14°C.
It's comfortable for a long swim from Jan 17 to Mar 15 — about 1.9 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 21 | 20 | 19 | 17 | 15 | 14 | 14 | 14 | 15 | 17 | 19 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool | Bracing | Bracing | Bracing | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Refreshing |
| Feb | 21 | Refreshing |
| Mar | 20 | Refreshing |
| Apr | 19 | Cool |
| May | 17 | Cool |
| Jun | 15 | Cool |
| Jul | 14 | Bracing |
| Aug | 14 | Bracing |
| Sep | 14 | Bracing |
| Oct | 15 | Cool |
| Nov | 17 | Cool |
| Dec | 19 | Cool |
UV index in Hamilton in Spring
Clear-sky midday UV across spring averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hamilton peaks around January 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 11 | 8 | 5 | 3 | 2 | 2 | 3 | 5 | 7 | 11 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Low | Moderate | Moderate | Moderate | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 11 | Extreme |
| Mar | 8 | Very high |
| Apr | 5 | High |
| May | 3 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Moderate |
| Aug | 3 | Moderate |
| Sep | 5 | Moderate |
| Oct | 7 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is Hamilton?
Hamilton sits at 37.8°S, 175.3°E, 39 m above sea level, in New Zealand. The nearest listed city is Hamilton East, 1.0 km away.
Topography around Hamilton
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hamilton.
Within 3 km, the terrain around Hamilton has only modest variations in elevation — a maximum elevation change of 59 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 166 m; within 80 km, large variations in elevation — a maximum elevation change of 1,023 m.
The land around Hamilton is covered by artificial surfaces (57%) and trees (23%) within 3 km, grassland (67%) within 16 km, and grassland (51%) and trees (26%) within 80 km.
New Zealand travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type I
- 230 V · 50 Hz
- Prices
- ≈ 86% of US
- price level, 2025
- GDP per capita
- $49,591
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.5
- per 100k, 2022
- Road deaths
- 9.6
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Hamilton (-37.7833°, 175.2833°, elevation 39 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.